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DNA Structure and Function Quiz

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Questions and Answers

What are the nitrogenous base pairings in double-stranded DNA according to the text?

A with G and T with C

A with U and C with G

A with C and T with G

A with T and C with G (correct)

What are the two types of nucleic acids mentioned in the text?

RNA and lipids

DNA and carbohydrates

DNA and proteins

DNA and RNA (correct)

What is the composition of a nucleotide as described in the text?

Nucleobase, deoxyribose, phosphate group (correct)

Nucleobase, fructose, phosphate group

Nucleobase, glucose, phosphate group

Nucleobase, ribose, phosphate group

Which macromolecules are listed as essential for all known forms of life in the text?

<p>Nucleic acids, proteins, lipids, complex carbohydrates</p> Signup and view all the answers

What are the purines and pyrimidines found in DNA as per the text?

<p>Guanine & adenine; thymine & cytosine</p> Signup and view all the answers

Study Notes

Nitrogenous Base Pairings in DNA

Adenine (A) pairs with Thymine (T)
Guanine (G) pairs with Cytosine (C)

Types of Nucleic Acids

DNA (Deoxyribonucleic acid)
RNA (Ribonucleic acid)

Composition of a Nucleotide

Sugar molecule (deoxyribose in DNA, ribose in RNA)
Phosphate group
Nitrogenous base (A, G, C, T, or U)

Essential Macromolecules for Life

Nucleic acids (DNA and RNA)

Purines and Pyrimidines in DNA

Purines: Adenine (A) and Guanine (G)
Pyrimidines: Thymine (T) and Cytosine (C)

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Description

Test your knowledge about the structure and function of DNA, the essential molecule that carries genetic instructions for all known organisms and many viruses.